+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   437235 (2012 XB20) Classification: Main-belt Asteroid          SPK-ID: 2437235 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1237568100095466 5.8685e-08   a 2.794373793134085 5.2636e-08 au q 2.448551006521535 1.8059e-07 au i 7.794579831870529 7.727e-06 deg node 253.872478607636 5.7428e-05 deg peri 45.71220143613892 6.9883e-05 deg M 333.609729195769 4.0684e-05 deg tp 2459125.573851125617 (2020-Oct-03.07385113) 0.00019423 TDB period 1706.181294585399 4.67 4.8207e-05 1.32e-07 d yr n .2109975072065714 5.9616e-09 deg/d Q 3.140196579746636 5.915e-08 au   Orbit Determination Parameters    # obs. used (total)      124      data-arc span      4191 days (11.47 yr)      first obs. used      2007-10-11      last obs. used      2019-04-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58634      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 15:06:39   Additional Information  Earth MOID = 1.44029 au   Jupiter MOID = 2.05369 au   T_jup = 3.303  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.5   n/a MPO472425   437235 (2012 XB20)          Discovered 2007-Oct-11 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-06-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-14 08:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin